The nervous Nellie responses

I'd avoid any diving board. Ours came with one and it was dismantled when our boys decided it would be fun to see how far out they could dive (to the shallow end).

Keep a fence around the pool that is hard to unlock. The pool drew our 2 year old daughter like a magnet. One other time neighborhood kids thought it would be funny to lift a little kid over the fence to where our pool was.

Everyone survived, although I had to jump in the pool twice fully clothed to fish out our kids. Even in So Cal New Year's Day is dang cold.